nizhikov commented on code in PR #11870: URL: https://github.com/apache/ignite/pull/11870#discussion_r1955102726
########## modules/core/src/main/java/org/apache/ignite/internal/processors/cache/persistence/filename/SnapshotFileTree.java: ########## @@ -0,0 +1,223 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +package org.apache.ignite.internal.processors.cache.persistence.filename; + +import java.io.File; +import org.apache.ignite.internal.IgniteEx; +import org.apache.ignite.internal.util.typedef.internal.A; +import org.apache.ignite.internal.util.typedef.internal.U; +import org.jetbrains.annotations.Nullable; + +import static org.apache.ignite.internal.pagemem.PageIdAllocator.INDEX_PARTITION; +import static org.apache.ignite.internal.pagemem.PageIdAllocator.MAX_PARTITION_ID; + +/** + * {@link NodeFileTree} extension with the methods required to work with snapshot file tree. + * During creation, full snapshot, creates the same file tree as regular node. + * But, using snapshot directory as root. + */ +public class SnapshotFileTree extends NodeFileTree { + /** File with delta pages suffix. */ + public static final String DELTA_SUFFIX = ".delta"; + + /** File with delta pages index suffix. */ + public static final String DELTA_IDX_SUFFIX = ".idx"; + + /** Snapshot metafile extension. */ + public static final String SNAPSHOT_METAFILE_EXT = ".smf"; + + /** File name template consists of delta pages. */ + public static final String PART_DELTA_TEMPLATE = PART_FILE_TEMPLATE + DELTA_SUFFIX; + + /** File name template for index delta pages. */ + public static final String INDEX_DELTA_NAME = INDEX_FILE_NAME + DELTA_SUFFIX; + + /** Lock file for dump directory. */ + public static final String DUMP_LOCK = "dump.lock"; + + /** Incremental snapshots directory name. */ + public static final String INC_SNP_DIR = "increments"; + + /** Snapshot name. */ + private final String name; + + /** Snapshot path. */ + @Nullable private final String path; + + /** Consistent id for snapshot. */ + private final String consId; + + /** Node file tree relative to {@link #tempFileTree()}. */ + private final NodeFileTree tmpFt; + + /** + * @param loc Local node. + * @param name Snapshot name. + * @param path Optional snapshot path. + */ + public SnapshotFileTree(IgniteEx loc, String name, @Nullable String path) { + super(root(loc.context().pdsFolderResolver().fileTree(), name, path), loc.context().pdsFolderResolver().fileTree().folderName()); + + A.notNullOrEmpty(name, "Snapshot name cannot be null or empty."); + A.ensure(U.alphanumericUnderscore(name), "Snapshot name must satisfy the following name pattern: a-zA-Z0-9_"); + + NodeFileTree ft = loc.context().pdsFolderResolver().fileTree(); + + this.name = name; + this.path = path; + this.consId = loc.localNode().consistentId().toString(); + this.tmpFt = new NodeFileTree(new File(ft.snapshotTempRoot(), name), folderName()); + } + + /** @return Snapshot name. */ + public String name() { + return name; + } + + /** @return Snapshot path. */ + @Nullable public String path() { + return path; + } + + /** @return Snapshot temp file tree. */ + public NodeFileTree tempFileTree() { + return tmpFt; + } + + /** + * @param incIdx Increment index. + * @return Root directory for incremental snapshot. + */ + public IncrementalSnapshotFileTree incrementalSnapshotFileTree(int incIdx) { + return new IncrementalSnapshotFileTree( + new File(incrementsRoot(), U.fixedLengthNumberName(incIdx, null)), + U.maskForFileName(folderName()), + incIdx + ) { Review Comment: Thanks. Fixed. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: notifications-unsubscr...@ignite.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
